digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

Cunningham downhaul

In sailing, a cunningham or cunningham's eye is a type of downhaul used on a Bermuda rigged sailboat to change the shape of a sail. Sailors also often refer to the cunningham as the "smart pig"–a play on words "cunning ham" that can be found in sailing forums.

It is named after its inventor, Briggs Cunningham, a victorious America's Cup skipper and yacht builder.[1]

The cunningham differs from a typical downhaul in the way that it attaches to the sail. The system usually consists of a line which is secured at one end to the mast or boom below the foot of the mainsail. It is then passed through a cringle in the luff of the sail near the foot, but above the tack, and then led down on the other side to a fitting on the mast or boom or on deck.

The tension in the luff of the sail is adjusted using a combination of the halyard and the cunningham (where fitted). The primary advantage of adjusting the cunningham is the speed and ease with which the luff tension can be changed while sailing or racing. By either hauling or easing the line, the tension in the luff can be changed, thereby shifting the point of maximum draft of the sail forward or aft respectively, optimizing sail shape—and therefore—performance. It is a fine control which is used more frequently on racing sailboats than on cruising or day-sailing boats.[2]

References[edit]

  1. ^ Barbara Lloyd (July 5, 2003). "Briggs Cunningham, 96, Racecar Pioneer and Sailing Champ". Obituaries. The New York Times. Retrieved 5 March 2012. 
  2. ^ "Sail shape". U.S. Sailing. Retrieved 15 August 2013. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Cunningham_(sailing) — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
16735 videos foundNext > 

The Cunningham, the Halyard and Luff tension

Sailing Instructional Video. Discuss this video and anything sailing on my forum www.anything-sailing.com. A small video that shows what is the Cunningham, t...

How to Sail with a Cunningham

Captain John with 25+ years of experience shows you the no-nonsense cruising skills you need for safer sailing worldwide. Visit his website at https://www.sk...

Advanced Sailing Lessons : Sail Shape: Advanced Sailing Video Lessons

Learn techniques for getting the best sail shape in this free video on sailing tips and instruction. Expert: Russ Ansley Bio: Russ Ansley began his sailing c...

DynaSim by WB-Sails - main cunningham

Adjusting the main cunningham in DynaSim (c) WB-Sails 2005.

Hervé Cunningham entrevistado por LX Sailing

Como vai ser o treino de hoje, nada melhor do que falar com o treinador da equipa portuguesa.

cunningham sail trimming 01.AVI

Steam V Sail with Dulling Summer soundtrack by Brian Cunningham

The paddle steamer Waverley passes a sailing ship on the river Clyde near to Greenock.

Rigging a Laser Sailboat

This is the rigging setup I use for racing. The video shows a laser radial, but the same setup is used for a full size rig, just with a different mast top se...

cunningham sail trimming 03.AVI

cunningham sail trimming 07.AVI

16735 videos foundNext > 

5 news items

 
Scuttlebutt Sailing News
Sun, 23 Mar 2014 16:31:56 -0700

Forty-seven teams competed in the 2014 Etchells U.S. National Championship on March 21-23, hosted by Coral Reef Yacht Club in Miami, FL. After completing six races over the first two days, Jim Cunningham with crew Jeff Madrigali, Mark Ivey, and Bryn ...
 
Scuttlebutt Sailing News
Mon, 09 Dec 2013 17:05:32 -0800

Jim Cunningham, sailing with Jeff Madrigali, Mark Ivy and Bryn Bachman took their third straight second place finish, in what had now become a two boat regatta. Phil Lotz on his boat, Arethusa, took third. In the last race it all came down to ...
 
J/Sailing News (blog)
Fri, 11 Apr 2014 12:30:00 -0700

... National Champion Jim Cunningham sailing LIFTED; past J/80 World Champion Kerry Klingler skippering MENACE from Cedar Point YC in CT; past College Champion at College of Charleston (e.g. a “local”) Cole Allsopp sailing MOXIE from Annapolis YC; ...
 
Doghouse Boxing
Mon, 17 Mar 2008 00:01:01 -0700

IBF cruiserweight champion Steve Cunningham would like nothing better in his boxing career than unify the 4 title belts with now 3 belt champion David Haye. I had the pleasure to sit next to Cunningham Friday night at the New Alhambra boxing show as we ...
 
My Sailing
Wed, 20 Apr 2011 16:00:10 -0700

Class newcomer, Simon Cunningham, sailing Slippery When Wet was close behind in second place, followed by Mark Lovelady, looking like the title favourite. Heat Six in a building seabreeze, saw Dirk van der Struyf on Chilly Bin lead to the top mark ...
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight